A Relation Between Gravity in $(3+1)$--Dimensions and Pontrjagin Topological Invariant
High Energy Physics - Theory
2009-07-22 v2
Abstract
A relation between the MacDowell-Mansouri theory of gravity and the Pontrjagin toplogical invariant in dimensions is discussed. This relation may be of especial interest in the quest of finding a mechanism to go from non-dynamical to dynamical gravity.
Cite
@article{arxiv.hep-th/9508128,
title = {A Relation Between Gravity in $(3+1)$--Dimensions and Pontrjagin Topological Invariant},
author = {M. Medina and J. A. Nieto},
journal= {arXiv preprint arXiv:hep-th/9508128},
year = {2009}
}
Comments
9 pages, TeX